欢迎来到天天文库
浏览记录
ID:5427515
大小:847.50 KB
页数:154页
时间:2017-12-11
《良种牛快繁与优质牧草开发产业化示范工程可行性研究报告》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、humanscameintobeingandtheirfutureseemedsecureatthattime.Thereweremanydifferentkindsofdinosaurandanumberofthemusedtoliveinchina.Theeggsoftwenty-fivespecieshavebeenfoundinXixiaCounty,Nanyang,Henanprovince.Notlongagoararenewspeciesofbird-likedinosaurwasdisc
2、overedinCountry,liaoningProvince.Whenscientistsinspectedthebones,theyweresurprisedtofindthatthesedinosaurscouldnotonlyrunliketheothersbutalsoclimbtrees.Theylearnedthisfromthewaytheboneswerejoinedtogether. Dinosaursdiedoutsuddenlyabout65millionyearsago.So
3、mescientiststhinkitcameafteranunexpectedincidentwhenahugerockfromspacehittheearthandputtoomuchdustintotheair.Othersthinktheearthgottoohotforthedinosaurstoliveonanymore.Nobodyknowsforsurewhyandhowdinosaurdisappearedfromtheearthinsuchashorttime. Weknowmany
4、otherwildplants,animals,insectsandbirdshavediedoutmorerecently.AccordingtoaUNreport,some844animalsandplantshavedisappearedinthelast500years.Thedodoisoneofthem.ItlivedontheIslandofMauritiusandwasaveryfriendlyanimal.Pleaselistentoastoryofthedodoandhowitdis
5、appearedfromtheearth. (3)Thereturnofthemiludeer MynameisLinhui.Iliketotellstoriesaboutpeoplewhoworktogether.Whatisevenbetteriswhencountrieshelpeachotherandbuildagoodfriendship.AnexcellentexampleofthishappenedwhenBritainandChinaworkedtogethertobringtheMil
6、udeerbacktoChina. TheMiludeer,aspecieswithlargehorns,usedtobecommoninChinalongago.Likeotherdeertheylivetogetherandeatgrassandthesoftpartsoftreessuchassmallbranches.Miludeerwereoftenhuntedforfoodorsportinthepast.The,MingandQingdynastiesdidnotprotecttheman
7、dmanywerekilled.ThatishowtheMiludeerdisappearedfromChina. Luckilybeforeallofthemwerekilled,someweretakentoBritaintoimprovetheenvironmentofthebeautifulparkwhichbelongedtotheDukeofBedford.HelikedthemsomuchthathetookthemallthewayfromChinatoBritain.TheMilude
8、erlikedthecool,wetweatherinEnglandandtheirnumberincreasedyearbyyear.Asaresult,whenin1985thegovernmentofChinawantedtoreintroducetheMiludeer,theDukeofBedfordwashappytohelp.ThefirstdeercamebacktoChinatotheNanhaiziMiluPark20ki
此文档下载收益归作者所有